Hollow article



Nov. 21, 1939.

w. J. DE WITT HOLLOW ARTICLE Filed Nov. 19, 1937 A w y WM 1; J w W lei Patented Nov. 21, 1939 umrso STATES PATENT F Flc fki William J. De Witt, Auburn, N. Y., assignor to IShoe Form 00., Inc., Auburn, N. Y., a corporation of New York Application November 19, 1937, Serial No. 175.462

'5 Claims. (01. 223-75) I p The hosiery form ll! selected to; illustrate this This invention relates to an improvement in hollow articles and more particularly to the method of making such articles and to the articles so made.

It has heretofore been the usual practice to make hollow and especially tubular articles by "inflating the material which constitutes the walls thereof or by forming them upon a mandrel of suitable contour. Attempts have also been made to form such article by stamping out sections thereof and thereafter joining the peripheral edges of such sections. Difiiculty has heretofore been experienced in joining the edges of the sections by the use of adhesive or cement upon the abutting edges due to the necessity of avoiding the formation of ridges because of the tendency of the peripheral edge of one section to shift relative to the abutting peripheral edge of another section.

This invention relates to articles formed from such sections and has for its primary object the provision of an intermediate plate of suitable contour interposed between thesections and upon which the edges of the sections are supported both during the formation of the article and thereafter. Such plate is provided peripherally with bosses or flanges or other guiding instrumentalities with which the peripheral edges come into contact and by which such edges are-steadied and positioned until and after the sections are completely joined. The plate moreover serves to reinforce the article against collapse.

This invention has been employed by me in the manufacture of hosiery forms comprising two suitably formed sections, and I have elected to describe the invention as so applied.

In the accompanying drawing, illustrating the application of this invention to the manufacture of hosiery forms:

Fig. 1 is a side elevational view of a hosiery form embodying this invention;

Fig. 2 is a longitudinal sectional View thereof formed by removing one section;

Figs. 3 and 4 are sectional views thereof taken along the section lines 33 and 4-4 respectively invention comprises two sections H "and I2 adapted to be properly assembled with the peripheral edges in common planes. 'Each section comprisesa foot portion [3, a leg portion I4 and top or closing section I 5'and ispreferably formed by a stamping operation with a suitable die. I

The peripheral edges H5 of the sections are to be so joined that the outer'surfaces of the completed hosiery form are smooth and free from ridges. This condition I find canbe attained most easily by employing an intermediate plate or partition 20 interposed between the sections and against the opposite faces of which the peripheral edges l6 of the sections rest. A row of bosses 2| spaced inward from the periphery of the plate along the front, bottom and rear edges define a continuous band 22, the width of which at each boss is equal to the thickness of the material forming the sections. The bosses 2i alternately project from the opposite faces of the plate.- As shownin Fig. '3- the bosses serve to support the peripheral edges and to position them opposite each other. The bosses at the ends of the row are similarly spaced from the upper edge of the plate for the same reasons (see Fig. 4).

The preferred manner of assembling a hosiery form is to-secure one section to the plate 20 by a suitable cement or adhesive. The peripheral edge is preferably secured both to the band 22 and to the bosses 2| with which it is in contact. After one section has been so joined to one face of the plate 20 the other section is similarly secured to the opposite face of the plate. The line of joinder is then buffed or otherwise treated to remove any roughness or unevenness which may result from the treatment.

The plate 20 not only serves to facilitate the manufacture of the form but also serves as a reinforcement therefor. It will be understood that in order that the hosiery form should stand upright suitable weighting material is inserted in the toe portion.

f The topof the hosiery form It is shown as closed but in many instances hosiery forms are made with the top completely or partially open. If such be the case a portion of the plate 20 may be removed as indicated in Fig. 2 by dotted lines.

The plate or partition 30 shown in Figs. 6 and '7 diflers from the plate 29 in that it is provided with a continuous flange SI and is entirely enclosed within the sectional hosiery form. The peripheral edges 32 of the form sections 33 rest upon the flange 3| in abutting relation. The

(See my Patent No. 1,780,744, r dated November 4, 1930.) l

edges of the sections are preferably secured both to the flange 3| and also to each other. The plate or partition 3!] thus serves as does the plate or partition 2! to support the edges of the sections and also to reinforce the completed form.

While the embodiment of thisinvention selected for illustration thereof is a hosiery form it will be understood that the scope of the invention is not limited thereby and that it may be employed in connection with other types of articles without departing from the spirit and scope of the invention as set forth in the following claims.

I claim:

1. A hollow article comprising two concave sections and a plate interposed therebetween, said plate having a row of bosses parallel to the edges thereof and spaced therefrom, and the peripheral edges of the sections resting upon the faces of the plate between the bosses and the edges of the plate.

2. A hollow article comprising two concave sections and a plate interposed therebetween, said plate having a row of bosses parallel to the edges thereof and spaced therefrom, and the peripheral edges of the sections resting upon the faces of the plate between the bosses and the edges of the plate and in contact with the bosses.

3. A hollow article comprising two concave sections and a plate interposed therebetween, said plate having a row of bosses parallel to the edges thereof and spaced therefrom a distance equal to the thickness of the material forming the peripheral edges of the sections, and such peripheral edges resting upon the faces of the plate between the bosses and the edges of the plate and in contact with the bosses.

4. A hollow hosiery form consisting of two sections and a plate interposed 'therebetween, each section comprising substantially one-half of the foot and leg portions of the form, the edges of said plate terminating at the outer surface of the form, said plate having a row of bosses therein spaced from the edges of the plate a distance equal to the thickness of the material forming the peripheral edges of the sections, and said peripheral edges resting upon the faces of the plate and in contact with said bosses.

5. A hollow hosiery form consisting of two sections and a plate interposed therebetween, each section comprising substantially one-half of the foot and leg portions of the form, the plate being flanged at its periphery and the peripheral edges of the sections resting upon the peripheral flange of the plate and in abutting relation to each other. 7

WILLIAM J. DE WIT'I'. 

